An adapter or adaptor[1] is a device that converts attributes of one electrical device or system to those of an otherwise incompatible device or system. Some modify power or signal attributes, while others merely adapt the physical form of one connector to another.
- ^ Both spellings are used in both British and American English."Macmillan English Dictionary". Macmillan Publishers Limited. 2010. Retrieved 2010-04-14.
adapter noun [countable] /əˈdæptə(r)/ or adaptor an object that allows you to connect two pieces of equipment of different types or sizes a. British an object that allows you to connect several pieces of electrical equipment to one electricity supply b. an object that allows you to use electrical equipment in countries where there is a different type of electricity supply from your own